The people accused of bringing in those prohibited items include prison employees and private contractors. It is a security threat that has happened at least twice this year.

News 4 Tucson Investigators have learned it has happened again.

According to a search warrant obtained by News 4 Tucson Investigators, a contractor for a food service company is accused of bringing the contraband items into the Arizona State Prison Complex Tucson located on South Wilmot Road.

Those items include cell phones and heroin.

Investigators said the contractor, identified as Ezekiel Martinez, was then given $200 in cash or paid via Western Union once the inmate received the contraband.

Arizona Department of Corrections Inspector General Greg Lauchner said cell phones inside state prisons are extremely dangerous to the staff and the other inmates.

View the video above for more information.

If you have something you would like the News 4 Tucson Investigators to check out, email us at investigators@kvoa.com, or call the News 4 Tucson Investigators tip-line at (520) 955-4444.